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Sanyo DP42647 Shutting off by itself.

This television is 15 months old. It is shutting off with no rhyme or reason. Sometimes it's been on for a while, sometimes not. Sometimes you can turn it back on right away, sometimes it takes 5 - 10 minutes. On some days it may happen 10 times, on other days not at all. I guess you can see what makes this problem a noodle scratcher...subwayjones

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  • Bill Dec 21, 2008

    I am working on the same model- this one has no picture- green light is on- sound there, but just static- I've discovered a melting pin on a power supply connector. connector CN2 -ribbon cable power to main board. one of the 12v pins has overheated & is turning brown. this points toward the main board or an inadequate wire size. -- this is only a starting point- it has not fixed this one yet. good luck

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6 Suggested Answers

savenabuck
  • 1 Answer

SOURCE: Problem with tv turning off by itself.

I had a friend with the same problem. He had to clean the components and fans in the set. The accumulated dust had caused the set to run hot and a safety switch was the tv off. He purchased a few cans of compressed air and, as he blew the components and fans out, used a vacuum to capture the blown dust. Good luck.

Posted on Dec 27, 2007

  • 1153 Answers

SOURCE: Mitsubishi VS-50707 shuts down sporadically

you can do a self-diagnosis test by pressing the menu and input/device button on set for 5 sec and see what error code it gives you. Count the blinks followed by a short pause then more blinks. This is the error code.

Posted on Mar 10, 2008

  • 1 Answer

SOURCE: television shuts itself off

i had the same problem with my set shutting off and was told it may be the ballast so i changed that but it still would start up and shut down after a few mins, then i was asked if the bulb had been changed and i had not, so i did change the bulb and have not had it shut down yet. :) (so try a new bulb)

Posted on Jul 17, 2009

  • 1 Answer

SOURCE: LG 52SX4D turns off randomly.

My Lg 52"tv turn off and on

Posted on Aug 15, 2009

Ecollier2012
  • 3459 Answers

SOURCE: Our Phillips 50P8341 50 in. Rear Projections

Any chirping sounds from the TV?

Posted on Dec 25, 2009

  • 63 Answers

SOURCE: The TV shuts off by itself, many times a day,

change the thermal sensor located on the light engine section on top of the lamp pn # AA41-00801D

Posted on Mar 03, 2011

Testimonial: "We were thinking the same thing, we put a small fan on the side where the vent is & it does help, but doesn't eliminate the problem completely."

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3 Answers

Hitachi 55VF820


well..the control board has this sort of issue. sometimes, if you turn if off long enough to reset itself, this may clear..otherwise, it's a replacement of a non inexpensive component..

what's your technical ability like?

Mar 22, 2008 | Projection Televisions

1 Answer

My tv turns off and on by itself. It will stay on for about 10 seconds then turn off.


This is a classic switchmode power supply, has sensed a severe potential problem, and is shutting down to avoid a fire, explosion, or both. This set had developed a problem, that is so severe that the set must be shut down, This set should be removed from the Power, and in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center, this point is very important for a good result, Always contact, their local, "Head Office" Now, when you get the information you want, then you can decide as to repair of replacement. The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done

Oct 13, 2011 | Sanyo PLV-55WM1 55" HDTV-Ready LCD TV

1 Answer

Television shuts itself off


i had the same problem with my set shutting off and was told it may be the ballast so i changed that but it still would start up and shut down after a few mins, then i was asked if the bulb had been changed and i had not, so i did change the bulb and have not had it shut down yet. :) (so try a new bulb)

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1 Answer

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bad flyback you can get a new one at the following link for about 50.00 they include free instructions and free tech support with every purchase so you can do the repair yourself. You need Flyback 259296 RCA Heres the link
http://servicemanuals.vstore.ca/

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Could be a power supply problem - sounds like the feeder cap was failing slowly until the heat stress on the regulator finally gave out.. You'll want to check the following: Strm6515A (That's the regulator, R9a23 1.2 ohm, C9a15 220uf/35v , R9a0 1k all in that feed circuit for the regulator.
Bill

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1 Answer

Shutting off and on...


the problem may be due to dry soldering in the power supply stage if it was with the lamp there would be red or green light showing the presence of the power to the tv after making it own some of the components get hot and it will make the the soldering point conectionless and after some time the heat sink get cooled and the soldering point gets connected and u will see the picture again it is a simple problem if u have a soldering iron u make it hot and re solder all the components in the first part of the circuit board and the problem if rectified

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2 Answers

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try to elevate the projection tv about an inch...

it well most likely work...

it's a ventilation problem.


Feb 09, 2007 | Philips 55PL9223 55" Rear Projection...

1 Answer

Set turns itself on for no reason (and sometimes off)


on menu, pick customize, then set the video input sensor to off.

Dec 31, 2006 | Hitachi 43UWX10B 43" Rear Projection...

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